So GPS makes people worse at orienteering -- on average, does it get everyone where they need to go, better / faster / easier?
Sometimes, the answer is admittedly no. Google + Facebook + TikTok certainly made us less informed when they cannibalized reporting (news media origination) without creating a replacement.
But on average, I'd say calculators did make the population more mathematically productive.
After all, lots of people sucked at math before them too.